M.Sc. DEGREE EXAMINATION, APRIL 2016
Second Semester
Zoology
ECOLOGY
(CBCS 2014 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 2 20)
Answer all questions.
All questions carry equal marks.
1. Ecosystem.
2. Food web.
3. Biogeochemical cycle.
4. Sedimentary biogeochemical cycle.
5. Mortality.
6. Community structure.
7. Biotic Community.
8. Coral reef.
9. Pollution and its types.
10. Bioremediation.
Sub. Code
509203
RW-10837
2
sp3
Part B 5 25)
Answer all questions, choosing either or
All questions carry equal marks.
11. Describe the trophic structure of an ecosystem.
Or
Elaborate ecological complexity and their stability.
12. Write a short notes on biogeochemical cycle.
Or
Cycling of non-essential elements and organic
nutrients.
13. Briefly explain the population concept.
Or
Describe the factors influencing the community
structure.
14. Write short notes on biotic feature of terrestrial
ecosystem.
Or
Biological significance of mangroves.
15. Explain the principles of conservation and their
application.
Or
Explain the role of climate change and its effect.
RW-10837
3
sp3
Part C 10 30)
Answer any three questions.
All questions carry equal marks.
16. Describe in details about food chain and their
significance.
17. Elaborate the recycling pathway of elements.
18. Give detail account on the factors influencing the
community structure.
19. Write elaborate notes on satellite mapping and their
significance.
20. Write a detailed account on biotechnology application in
environmental studies.